NEC Versa Series - Manual (Page 132)

Frequently Asked Questions C-9
I'm having a problem using the IR port. What can I do?
Use the taskbar icon to enable the IR port. Next, enter the BIOS Setup
utility to verify that the IR serial port setting contains an available COM port and IRQ
setting.
Check that both the sending and receiving system and device are using the same
transmission software.
If you are transmitting underneath a fluorescent light, try repositioning the system and
device so that they are not directly under the fluorescent light.
Reference the IR setup online help for further information.